diff --git a/library/include/mobilisis/tariff_carryover_settings.h b/library/include/mobilisis/tariff_carryover_settings.h
index 076caad..a65b495 100644
--- a/library/include/mobilisis/tariff_carryover_settings.h
+++ b/library/include/mobilisis/tariff_carryover_settings.h
@@ -10,7 +10,9 @@ struct ATBTariffCarryOverSettings {
 
     // parking time limit not violated: return false, otherwise: return true.
     using ParkingTimeLimitChecker = std::function<bool(ATBTariffCarryOverSettings const&,
-                                                       QDateTime const &endTime, int paymentOptionIndex)>;
+                                                       QDateTime const &startTime,
+                                                       QDateTime const &endTime,
+                                                       int paymentOptionIndex)>;
 
     int m_duration;
     QTime m_start;
@@ -24,7 +26,8 @@ struct ATBTariffCarryOverSettings {
       : m_duration(0)
       , m_start(QTime())
       , m_end(QTime())
-      , m_parkingTimeLimitChecker([](ATBTariffCarryOverSettings const&, QDateTime const &, int) { return false; })
+      , m_parkingTimeLimitChecker([](ATBTariffCarryOverSettings const&,
+                                  QDateTime const&, QDateTime const&, int) { return false; })
       , m_parking_time_limit(QTime())
       , m_about_to_exceed_parking_time_limit(QTime()) {}
 
@@ -41,8 +44,10 @@ struct ATBTariffCarryOverSettings {
       , m_about_to_exceed_parking_time_limit(about_to_exceed_parking_time_limit) {
     }
 
-    bool parkingTimeLimitExceeded(QDateTime const &endTime, int paymentOptionIndex) const {
-        return m_parkingTimeLimitChecker(*this, endTime, paymentOptionIndex);
+    bool parkingTimeLimitExceeded(QDateTime const &startTime,
+                                  QDateTime const &endTime,
+                                  int paymentOptionIndex) const {
+        return m_parkingTimeLimitChecker(*this, startTime, endTime, paymentOptionIndex);
     }
 
     friend QDebug operator<<(QDebug debug, ATBTariffCarryOverSettings const &co) {